Main areas
The main area is large grassy plateau with some buildings and trees. One side leads to a steep cliff into the ocean, and on the other side is a mountain with various caves. A hill is located in the eastern part of it.
* Train station - A tall wooden building with stairs that leads to a stone bridge where the train waits for passengers to take to Station Square. Inside the building is a ladder that leads to a raft that takes people to the Egg Carrier.
* Tails' Workshop - A small two-story house located on a hill. It has with a long biplane runway with two rows of palm trees leading out into the ocean. The workshop is apparently connected to a cave beneath the house, where Tails works on his Tornado 2.
* Lake - A small lake with a waterfall leading to it and a river leading into the ocean. A Silver Chao Egg can be discovered by pushing against a panel.
* Caves - The west caves lead to Angel Island. The east caves lead to an upgrade for Knuckles and the Mystic Ruins Chao Garden.
* Chao Garden - A large grassy area on the side of a mountain. There is a lake and several large rocks lying about. The lake is connected to a larger one which is above the waterfall, it is there where Chaos 4 was fought.
* Windy Valley - An windy Action Stage where tornadoes easily form. The second part of the stage consists of floating paths high above the clouds.
Jungle areas
The jungle area is a maze-like area with many paths through a large jungle. Several archaeologists are lost there.
* Big's Hut - A small wooden structure where Big the Cat lives.
* Echidna Temple - A large maya-like temple that used to be the holy site of the Echidnas. It is the portal to Lost World.
* Lost World - An Action Stage set inside the temple. It is extremely large, and one part somehow features an outside section that looks nothing like the jungle. The temple also contains various booby traps such as a giant rolling stone ball and gravity panels that move on the wall. The center of the temple contains a mural of Perfect Chaos.
* Sand Hill - A long desert slope with various ruins which burst from the ground. (Could be Sandopolis as it's in the direction of Angel Island.)
* Final Egg - Eggman's large tower base, where he keeps his Egg Carrier and Egg Viper. It is entered via a long tube in the jungle, this is the base that the first of the E-100 series was created. The base is heavily defended and has three sectors, the first is simple pathways with spinning iron, spike balls and grinding mechanisms. The second drastically changes from the first, it is basically a large shaft that leads downwards, three tunnels lead to different levels and at the bottom there are more spinning masses. The last is similar to the first, except for three large rooms containing exploding crabs as well as pitfalls.
